4 Costly Government Penalties Retirees Should Avoid

A Lifetime Reduction in Social Security Benefits for Early Claims

The age at which you start to collect Social Security benefits has a big impact on the amount of money you ultimately get from the program. The key age to know is your full retirement age. For people born between 1943 and 1954, full retirement age is 66. It gradually climbs toward 67 if your birthday falls between 1955 and 1959. For those born in 1960 or later, full retirement age is 67. You can collect Social Security as soon as you turn 62, but taking benefits before full retirement age results in a permanent reduction -- as much as 25% of your benefit if your full retirement age is 66.

• Another way you can get dinged for taking Social Security early: The "Social Security earnings test." Early claimers who are still working will forfeit $1 in benefits for every $2 you make over the earnings limit, which in 2017 is $16,920. Once you're past full retirement age, the earnings test disappears and you can make as much money as you want with no impact on benefits. Any benefits forfeited because earnings exceed the limits are not lost forever, however. At full retirement age, the Social Security Administration will recalculate your benefits going forward to take into account benefits lost to the test.

TAKE OUR QUIZ: Test Your Social Security IQ

A Penalty for Failing to Take Required Minimum Distributions (RMDs)

Once you turn 70 1/2, you must begin withdrawing funds -- whether you need the money to live on or not -- from your traditional individual retirement accounts (IRAs) and employer-sponsored retirement plans, such as 401(k)s.

How much to withdraw? You don't need a computer or a degree in accounting to figure it out. First, find the year-end balance of every traditional IRA you own. Second, add them together. Third, divide the total by a factor provided by the IRS that's based on your age and life expectancy. (If you don't want to do the math, use our RMD calculator.)

Generally, you must take your RMDs by December 31, but first-timers can wait to take their initial payout until as late as April 1 of the following year. If you don't take your required distribution by the deadline, you'll face a penalty equal to 50% of the amount you failed to withdraw.

If you miss the RMD deadline, though, don't automatically send a check to the IRS. The agency can -- and often does -- waive the penalty for taxpayers who have a good excuse, such as getting lousy advice from a tax preparer or IRA sponsor, say, or becoming seriously ill just before year-end when you had planned to make the required withdrawal.

A Penalty for Failing to Sign Up for Medicare at the Right Time

If you're already receiving Social Security benefits, you'll automatically be enrolled in Medicare and you'll get your Medicare card in the mail three months before your 65th birthday. Your coverage will start at the beginning of the month you turn age 65. (If your birthday is on the first day of the month, however, your coverage will start on the first day of the month before your birthday.)

If you aren't receiving Social Security benefits yet, you'll have to take steps to enroll in Medicare.You have a seven-month window to sign up – starting three months before the month you turn 65 and ending three months after your birthday month (called the "initial enrollment period"). It's a good idea to sign up before your birthday month so you can get coverage as early as possible.

• If you fail to enroll in Medicare during the initial enrollment period, you’ll have to pay a late-enrollment penalty of 10% of the Part B premium for every year you should have had coverage. The penalty applies as long as you receive Medicare benefits.

Note: If you have coverage through an employer with 20 or more employees, you don’t have to sign up for Medicare when you turn 65 because the group policy pays first and Medicare pays second. You’ll avoid a future penalty as long as you sign up for Part B within eight months of leaving your job.

TAKE OUR QUIZ: Making Sense of Medicare

The Death Tax

Die too wealthy, and the IRS will take one final swipe at your assets. The federal estate tax affects estates valued at $5.49 million (or $10.98 million for couples) in 2017. Assets left to a surviving spouse are not taxable.

While federal estate taxes only affect the extremely wealthy, state estate taxes, which kick in for estates valued at only $1 million in some states, could take a big bite out of your legacy. Your home and retirement accounts will be counted when your estate is valued for tax purposes, and proceeds from your life insurance could be counted, too, depending on how the policy is owned and who gets the money.